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March 2, 2023, 08:01 |
rhoPimpleFoam vs. rhoCentralFoam
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#1 |
New Member
William
Join Date: Mar 2023
Posts: 1
Rep Power: 0 |
Hello,
at the moment i am investigating the differences of pressure-based vs. density-based solvers for subsonic flows. I am testing on the Axisymmetric subsonic Jet from NASA: https://turbmodels.larc.nasa.gov/jetsubsonic_val.html This case has a speed of ca. 0.5Ma, so i think a interesting point to investigate between pressure and density based. I managed to set up the rhoPimpleFoam Case and get decent results. However the rhoCentralFoam is giving me Headaches. I am getting wildly diffrent results and dont quite understand why. I realize that the pressure-based solver should probably perform better at such a small Mach-number, but i just don't think it should perform this badly. I attached two screenshots from paraView and both of the cases, without the time folders and mesh because of size reasons. Maybe someone is interested in this and could take a look. Cheers ! |
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Tags |
density based, pressure based, rhocentrafoam, rhopimplefoam |
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